Ejector, condenser, and air pump or compressor.



E. S. G. EEES. EJEGTOR, GONDBNSBR, AND AIR PUMP 0R COMPRESSOR.

APPLICATION FILED AUG. 6, 1919.

Patented Sept. 5, 1911.

2 SHEETS-SHEET 1.

I I I 2 SHEBTSLSIIIEET 2.

'Patented sept. 5,1911.

E. S. G. REBS. JBOTOR, GONDENSER, AND AIR PUMP OR COMPRESSOR.

- APPLICATION FILED AUG. 6, 1910.

i Umm ,enMUNn sobre eusravn iiainsaor Wonvnananrron, ENGLAND saneren,connaissait, ann Ain PUMP 'on conrnnsson.

Specification of Letters lPatent.

Application filed August 6, 1910.

Serial No. 575,974.

provements in Ejectors, Condensers, and Air lumps or Compressors, ofwhich the following is a specification.

This invention relates to ejcctors, condens-ers, air pumps andcompressors of that type in which the air or steam or othernoncondeusable. or condensable gasis entrained" in streams of Waterissuing from two or more jets or nozzles, which streams of water may ormay not impiuge on each other prior to encountering the gas to beentrained, or unite to form a single stream in the ejectorpipe. i

'lccording to the present"invention a maximum entraining surface isobtained by so subdividing the streams that they impinge on each otherto form a fanlike sheet or sheets of Water, vsuch sheets being also atthe same time and by the saine means sprayed or sub-divided. Thesesheets of water of which preferably there are several converging towardeach other so as to form with the entrained gases a compound orlaminated sheet, aredireeted into the narrow elongated linlet or inletsof anexpanding passage or passages inV wwhich the pressure et'`theavater and the entrained gases is raised to the pressure ofdischarge.

The invention may be applied either, as shown in Figures 1 to .5 of theaccompany.- ing drawings, to a stationary apparatus in which velocity isimparted to the Water in suitably directed nozzles to which the water isdelivered under pressure; Figs. l'and 2 being longitudinal sections inplanes at right. angles to each other and Fig. 3 a transverse section online 3-3 of Fig. l, Fig. 4 a longitudinal section of a modiiiedconstruction and Fig. 5 a section on line 5 5 i of Fig. il, or as shownin longitudinal section in Figs. G and 7 and in transverse section in F8, two centrifugal pumps or equiva lent rotary apparatus may be used toprofduce the streams of Water and project them so as to at a suitablevelocity, and ai'iple within the condensing or gas-entrainingcli-airliner of a stationary ejector apparatus, Figs. l' and 8 beingtransverse sec Patented Sept. 5,

tionsk of `the ejector taken on lines 7 7 and j afs of 'rig` In theapparatus shown in Figs. l-3 Water is delivered under pressure tochamber; z which is closed at its delivery end by aplate or grid Z)having holes or nozzles ciiorined` therein andmutually inclined in`pairs as show-n, Thev streams ot water issuing" high velocity from theindividualnzzles each pair impinge'within an inlet e connecb at of edwith the space or vessel to be exhausted,`4`

and form fan-like sheets indicated at hav ling resultant directions suchlthat these various sheets of rain or spray are projected eonvergmglyinto the narrow elongated mouth' g of the expanding passage g which isdesigned to raise the pressureof the Waterf .together With the entrainedgas or gasesto that of the atmosphere, or otherwise to that of the spaceinto which they are delivered.

The form of the expanding passage g is preferably that Aobtained byiiattening 'tlie walls of a tube continuously and gradually from theydelivery end g2 Which is circular,

to the inlet end g which is 4narrow and subAA stantially rectangular. Asshown, this orin is obtained by inserting in a circular pipe a block orblocks h shaped to give the required opening g at the inlet end and sodisposed longitudinally of the pipe thatthis openingis substantially atthe point, of con` vergence ol the sheets of Water f. As there ofmaximum. constriction and thence with a -in shown the block 71, visformed with a con-` i 3 to the ll opening of the pipe.

Fig., 4 shows in longitudinal section a' modified construction of thisstatic ejector.

In this figure the nozzles. care distr'buted in circles around thesuitably inclined lower Walls or" the chamber a which is supplied withWater under pressure. As in the construction of Figs. l to 3, thenozzles c are mutually inclinedl in pairs to form fan-like sheets ofWater,v the direction and velocity of which are such that these sheetsof Water are projected toward an annular neck g leading to a series ofexpanding passages g which int-urn deliver to chamber z' at. the base ofthe ejector provided with outlet which may or may not he connected Witha centrifugal or other pump. The annular neck g and expanding ducts gare formed between the external easing and an internal shell or dome,the interior of which is placed in communication with the outside of thecasing by means of .a' pipe 7' opening into the top part of the dome,"which pipe may De 5 connected with a pump or other eXha-ustin fapparatus. Drainage holes la are provided as shown to convey any leakageWater yor condensed steam from the chamber d, which isconnected With thespace or vessel to be exhausted by inlet pipe e, to the chamber throughannular neck g and expanding passages g. As shown in Fig. which isatransverse section on line 5 5 of Fig. 4, ther streams of Water fromthe nozzles 0, after impinging 'on each other, form fan-like sheets ofrainlv Iorspray which ll the Whole or substantially the Whole peripheryor the annular necl g.

.Infthe apparatus shown in longitudinal 2p sectibn in Figs. 6 and 7 theimpinging streams of Water 'are shown as obtained by a pair ofoppositely rotating reverse turbines. Tater is delivered to the fixedann ular'shells sgat onepoint of the periphery of Which vare a number ofnozzles s through which the Water is ejected in streams into rapidlyrotating wheels t having vanes t' so curved as to fling the Water at ahighvelocity and in streams Whichy converge usually '30 at acomparatively small angle, e. consider-ably less than a right angle,Within a chamber u vvhich communicates with the @Space tobeie'x'hausted.

i The fane'like sheet of sprayed Water formed by thehimpinging streamsis directed into a contracting pipe o'ot' dat section aper- "ture Whichin tlurn delivers to lan expanding pipe o of similiariaperture, carryingwith it the gas "'entrained in fth'eiihpinging streams. 40 Thecontracting and; expanding ducts o o may be formed in the mannerdescribed With reference to Figs. l, 2 and 3.

Having now described the nature of my said invention and the best meansL know of carrying the same intoy practical effect, I

vclaim:-

1. An ejector, condenser or the like apparatus comprising means Atorprojecting streams ofv Water so as to impinge on each other and formafan-like sheet of sprayed Water-,and an ejector into which the 'sheet ofWater is projected.

y 4.2. An ejector, condenser or the like apparatus comprising means forprojecting streams of Water so as to'impinge on each other andv form afan-like sheet of sprayed Water, and an ejector into which the sheet ofWater is projected, said ejector having an expanding passage with anarrow elongated inlet.

3. An ejector, condenser or the like apparatus, comprising means forprojecting streams of Water so as to impmge on each other in pairs andform converging sheets of streams of Water so as to impinge 0n eachother and form a fan-like sheet or sheets of sprayed Water, and anejector into which the said sheet or sheets of Water are projected, saidejector comprising a pipe and a pl vg or plugs secured therein, saidplug or plugs being formed to leave a` central passage the cross sectionof which changes gradually from a narrow elongated aperture at the inletend to a circular aperture of the diame ter of the pipe at the outletend of said passage.

5. An ejector, condenser or the llke apparatus, comprism a Waterpressure a plane at right angles to the plane of the I mutually inclinednozzles.

6. An ejector, condenser or the like' apparatus, comprising a waterpressure chamber, a plurality of co-planer nozzles leading from saidchamber and so inclined that the issuing streams of Water impinge oneach other in pairs, and an expanding passage in the ejector having anarrow velongated inlet in a plane at right angles to the plane of themutually inclined nozzles.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

' EDMUND SCOTT GUSTAVE REES.

lWitnesses:

JOSEPH MILLARD, VALTER J. SKERTEi

